The Surface 2 runs on ARM, just like the Surface RT, and thus runs the Windows RT operating system. (It will be the Windows 8.1 RT variant, sources have said.)

Otherwise, the 10.6-inch Surface 2 will look almost identical to the current 10.6-inch Surface RT. It will use the same VaporMg case and work with the current Surface Touch and Type keyboard/covers, as well as some of the coming, new Touch and Type ones. (Surface 2 isn't expected to work with the rumored Power Cover, however.)